CN203574865U - Wireless protection system based on online carrier wave detection of electrical cable - Google Patents
Wireless protection system based on online carrier wave detection of electrical cable Download PDFInfo
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- CN203574865U CN203574865U CN201320586125.8U CN201320586125U CN203574865U CN 203574865 U CN203574865 U CN 203574865U CN 201320586125 U CN201320586125 U CN 201320586125U CN 203574865 U CN203574865 U CN 203574865U
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Abstract
The utility model relates to electrical cable fault detection, and specifically relates to a wireless protection system based on online carrier wave detection of an electrical cable. The wireless protection system comprises a plurality of electrical cable detection points which are fixed on the electrical cable, a zigBee coprocessor which is used for establishing a wireless network, at least one embedded wireless network gateway which is mounted on a line tower, and a server which is disposed in a remote monitoring center. The electrical cable detection points at least include a power carrier wave communication module and a zigBee wireless communication module, are distributed on the electrical cable at certain intervals, and are communicated with adjacent nodes. The zigBee coprocessor is communicated with the electrical cable detection points through a built wireless network. The embedded wireless network gateway is in communication with the zigBee coprocessor through a serial port to achieve detection data fusion. The embedded wireless network gateway is communicated with the GPRS module through a remote server. The wireless protection system is stable in work, high in reliability, low in cost, and suitable for monitoring and maintenance for electrical cables, with which segmental reliable communication and on-off detection for data on an electrical wire are achieved, a fault point is positioned accurately, a difficult technical problem of reliable online on-off detection for the electrical wire is solved.
Description
Technical field
The present utility model relates to electric power cable fault detect, is specifically related to a kind of electric power cable wireless protection system based on online carrier detect.
Background technology
Cable line is the modal path of electric power transfer, and thunderbolt, Freshets roar down from the mountains, engineering construction construction and human factor etc. easily cause electric power cable to interrupt damaging.In addition, the stolen situation of backwoodsman agricultural cable, road lighting cable and highway cable happens occasionally, and causes tremendous economic loss.Conventional electric power cable fault is all manual inspection and having keeped in repair, cannot and alarm.Along with the distribution area of electric power cable constantly expands, manual inspection workload greatly increase and work passive, difficult management.No matter external low voltage electric power carrier communication is application technology or theoretical research, comparative maturity and being widely used; And it is domestic, low-voltage power line is transmitting the electric energy of 220V/50Hz, humorous wave interference is large, communication channel is disturbed strong and changeable, to the detection of electric power cable, have that rate of false alarm is high, localization of fault is inaccurate, measuring ability is subject to the charged situation of cable to affect the shortcomings such as large and cost performance is low, cannot really meet electric power cable and detect demand.Therefore, design one can more stably detect at any time online, realizes more accurately localization of fault, improves better the antijamming capability of signal transmission, reduces the cable fault detection system of rate of false alarm, has been the active demand of industry.
Utility model content
The purpose of this utility model is the defect that overcomes the existence such as existing electric power cable detection failure rate of false alarm is high, localization of fault is inaccurate, cost performance is low; a kind of this defect of solution has been proposed, the electric power cable wireless protection system based on online carrier detect that whole system stability and reliability are got a promotion.
The technical solution adopted in the utility model is as follows:
A kind of electric power cable wireless protection system based on online carrier detect: comprise the some electric power cable detection node that are fixed on electric power cable; set up the ZigBee coprocessor of wireless network; be arranged at least one embedded wireless gateway on circuit tower, and be arranged at the server of remote monitoring center.Described electric power cable detection node at least comprises power line carrier, PLC module and ZigBee wireless communication module, distributes, and be adjacent node and communicate on electric power cable according to a determining deviation; Described ZigBee coprocessor, by the wireless network of setting up, is communicated by letter with each electric power cable detection node; Described embedded wireless gateway and ZigBee coprocessor, by serial communication, are realized and are detected data fusion; Described embedded wireless gateway and remote server are by GPRS module communication.
Described power carrier module is realized by carrier communication module BPW09 and peripheral circuit, and on electric power cable according to a determining deviation setting, and realize the communication between each power carrier detection module by PLC technology.
Described ZigBee wireless module adopts the CC2530 chip based on IEEE802.15.4 protocol stack.Grid adopts Z-Stack protocol stack to realize the star-like ZigBee wireless network with network automatic function
Described embedded wireless gateway is realized by parts such as arm processor, GPRS module, SIM card and power interface circuits.
Described arm processor is STM32F103VET6.
Described GPRS module model is SIM900A.
Described power module is to adopt voltage stabilizing chip LM1117-ADJ and peripheral circuit thereof to realize.
Described remote server is for receiving the data of embedded gateway and it being carried out to interaction process, storage, and the mode combining with form and graphical interfaces shows cable situation.
Compared with prior art, the beneficial effects of the utility model are:
Transfer of data antijamming capability is strong, safe and reliable.Power carrier module adopts the modulated transmission signal of FSK and DSSS, guarantees the anti-interference and transmission range of signal transmission.In addition, the method that terminal node adopts relay-type poll to detect when detection streamer, the order detecting is along electric wire one end order toward other direction transmission, has so just effectively avoided the detection information phase mutual interference on same time same cable.ZigBee dynamic group net technology, makes to have between detection module function of automatic dynamic networking, and information mode by automatic route in whole ZigBee-network is transmitted, and has guaranteed the reliability of communication.
Low-power consumption, transmission range is long, cost is low.CC2530 and SIM300 chip all can work in low-power consumption mode, have reduced network and have set up and maintenance cost.And CC2530 has high receiving sensitivity, anti-interference is also stronger, in ZigBee-network, maximum open ended nodes are 65000 nodes, and the best effective communication distance of adjacent power carrier intermodule is 200m, and whole system can detect the electric power cable of about 13000km.The embedded powerful ICP/IP protocol of SIM300, it is high that data pass speed, reduced the unreliability of the transfer of data of remote data transmission.
Accurately realize localization of fault.In ZigBee-network, coprocessor can be each node and distributes unique ID address.Adopt algorithm redundancy, the method for 5 collection signals realizes the accuracy of communication under adverse circumstances, makes localization of fault more accurate simultaneously.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present utility model.
Fig. 2 is the theory diagram of the utility model embedded wireless gateway.
Fig. 3 is the testing flow chart of the utility model system.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
Embodiment 1
As shown in Figure 1, for system architecture diagram of the present utility model, at electric power cable (1), above according to a determining deviation, detection module (2) is set, ZigBee module on detection module is sent and is detected data by serial ports, power carrier module receives after data, by coupling circuit, is loaded into electric power cable; Receiving terminal receives carrier signal, by serial ports, these detection data is sent to corresponding ZigBee module.Zigbee module contrasts data analysis, determines after communications status, and cable situation is sent to network ZigBee coprocessor (3) by WLAN (wireless local area network), completes the online detection to cable.If cable is damaged, signal interruption transmission, power carrier module sends to network ZigBee coprocessor by fault message by ZigBee wireless network.Embedded wireless gateway (4) merges, processes the data of ZigBee coprocessor, then, by the GPRS module of access, data is sent to remote server (5).Server carries out interaction process, storage to the data of passing back, and the mode combining with form and graphical interfaces shows cable situation, for the operation maintenance of electric power cable provides decision-making foundation.
Described ZigBee wireless module adopts the CC2530 chip based on IEEE802.15.4 protocol stack.Grid adopts Z-Stack protocol stack to realize the star-like ZigBee wireless network with network automatic function.
As shown in Figure 2, described embedded wireless gateway is realized by parts such as arm processor, GPRS module, SIM card and power interface circuits.Microprocessor STM32F103VET6 is connected with power interface circuit with ZigBee coprocessor, GPRS module respectively, and by GPRS module and SIM card, the data of fault message is sent to remote monitoring center.Wherein, microprocessor STM32F103VET6 is used for ZigBee communication module to carry out corresponding configuration, and receives the data of detection node; By AT instruction initialization GPRS communication module, utilize ICP/IP protocol that gateway node is connected to GPRS network, by the IP address of Virtual network operator dynamic assignment, set up and be effectively connected with remote monitoring center terminal or server.Described GPRS module is SIM900A module, stable work in work, and cost performance is high.
As shown in Figure 3, for the testing flow chart of the utility model system: the method that adopts relay-type poll to detect, the order detecting is along electric wire one end order toward other direction transmission, has so just effectively avoided the detection information phase mutual interference on same time same cable.From signal sending end, count, the 1st node sends carrier signal incessantly, and carrier signal is delivered to node 2 along power circuit and shakes hands, and shakes hands successfully, and signal is sent by node 2 again, shakes hands with node 3, is delivered to distal line detection node N always.If detection node is not worked, enter standby low power consumpting state.If each node receives correct information, circuit fault-free, this detects end.Circulation so always.If when certain power circuit breaks down or during abnormal conditions, the detection module that is positioned at these faulty line two ends repeats the detection judgement of a new round, if receiving terminal wait timeout, the ZigBee in the power carrier detection node of receiving terminal sends to ZigBee coprocessor by corresponding ID address, radio network gateway is processed data, then by the GPRS module of access, related data is sent to remote server.Road administration personnel receive after information, can infer and orient cable fault position, just can rush for rapidly the site of an accident, process.
In communication process, transfer of data is always subject to the carrier-in-interference of power line network, therefore, in the sending and receiving of every frame data, must take certain measure, reduces rate of false alarm.The algorithm arrangement that the design takes is: each data send 5 times, during reception, deposited respectively in 5 registers, then compare the data in 5 registers, at least 2 registers, data equate to be correct information, can guarantee like this correctness and reliability that information is transmitted.
According to above-mentioned embodiment, just can realize well the utility model.
Claims (8)
1. the electric power cable wireless protection system based on online carrier detect, it is characterized in that: it comprises the some electric power cable detection node (2) that are fixed on electric power cable (1), set up the ZigBee coprocessor (3) of wireless network, be arranged at least one embedded wireless gateway (4) on circuit tower, and be arranged at the server (5) of remote monitoring center, described electric power cable detection node at least comprises power line carrier, PLC module and ZigBee wireless communication module, on electric power cable, according to a determining deviation, distribute, and be adjacent node and communicate, described ZigBee coprocessor, by the wireless network of setting up, is communicated by letter with each electric power cable detection node, described embedded wireless gateway and ZigBee coprocessor, by serial communication, are realized and are detected data fusion, described embedded wireless gateway and remote server are by GPRS module communication.
2. a kind of electric power cable wireless protection system based on online carrier detect according to claim 1, is characterized in that: power line carrier, PLC module is realized by carrier communication module BPW09 and peripheral circuit.
3. a kind of electric power cable wireless protection system based on online carrier detect according to claim 1; it is characterized in that: described ZigBee wireless module adopts the CC2530 chip based on IEEE802.15.4 protocol stack, grid adopts Z-Stack protocol stack to realize the star-like ZigBee wireless network with network automatic function.
4. a kind of electric power cable wireless protection system based on online carrier detect according to claim 1, is characterized in that: described embedded wireless gateway is realized by parts such as arm processor, GPRS module, SIM card and power interface circuits.
5. a kind of electric power cable wireless protection system based on online carrier detect according to claim 4, is characterized in that: described arm processor is STM32F103VET6.
6. a kind of electric power cable wireless protection system based on online carrier detect according to claim 4, is characterized in that: described GPRS module model is SIM900A.
7. a kind of electric power cable wireless protection system based on online carrier detect according to claim 4, is characterized in that: described power module is to adopt voltage stabilizing chip LM1117-ADJ and peripheral circuit thereof to realize.
8. a kind of electric power cable wireless protection system based on online carrier detect according to claim 1; it is characterized in that: described remote server receives the data of embedded gateway and its data are carried out to interaction process, storage, and the mode combining with form and graphical interfaces shows cable situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586125.8U CN203574865U (en) | 2013-09-14 | 2013-09-14 | Wireless protection system based on online carrier wave detection of electrical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320586125.8U CN203574865U (en) | 2013-09-14 | 2013-09-14 | Wireless protection system based on online carrier wave detection of electrical cable |
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| CN203574865U true CN203574865U (en) | 2014-04-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160860A (en) * | 2015-09-18 | 2015-12-16 | 国网冀北电力有限公司信息通信分公司 | Power-device remote monitoring system based on power line carrier technology |
| CN105277846A (en) * | 2014-06-12 | 2016-01-27 | 广西电网公司北海供电局 | Passive coupling communication mode-based power distribution line on-line monitoring method and device |
| CN107730813A (en) * | 2017-09-18 | 2018-02-23 | 厦门市智联信通物联网科技有限公司 | A kind of cable anti-theft device and method |
| CN113300740A (en) * | 2021-05-18 | 2021-08-24 | 福建工程学院 | Power system monitoring communication system and method based on three telecom operators |
-
2013
- 2013-09-14 CN CN201320586125.8U patent/CN203574865U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277846A (en) * | 2014-06-12 | 2016-01-27 | 广西电网公司北海供电局 | Passive coupling communication mode-based power distribution line on-line monitoring method and device |
| CN105160860A (en) * | 2015-09-18 | 2015-12-16 | 国网冀北电力有限公司信息通信分公司 | Power-device remote monitoring system based on power line carrier technology |
| CN107730813A (en) * | 2017-09-18 | 2018-02-23 | 厦门市智联信通物联网科技有限公司 | A kind of cable anti-theft device and method |
| CN113300740A (en) * | 2021-05-18 | 2021-08-24 | 福建工程学院 | Power system monitoring communication system and method based on three telecom operators |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20140914 |
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| EXPY | Termination of patent right or utility model |